A Salty Old Girl

  Female Seaside Dragonlet on  Marsh Bristlegrass ~ Brazoria Wildlife Refuge

The Seaside Dragonlet (Erythrodiplax berenice) spends most of its time perched atop salt marsh plants; here, one rests on a stem of marsh bristlegrass (Setaria parviflora).

Perhaps ‘saltmarsh dragonlet’ would be a better name, since they’re often the only dragonfly in the marshes. Other dragonflies appear in coastal habitats, hunting insects over dunes and wetlands, but no other species is as tied to the coast as the dragonlet; they rarely appear inland, and are considered to be our only marine dragonfly.

The primary reason is their adaptation to salt. Like all dragonfly larvae, seaside dragonlet nymphs are aquatic, but their ability to regulate the concentration of salt within their bodies allows them to thrive in saltwater; researchers have found them tolerating water as much as three times the salinity of the ocean. In salt marshes, the seaside dragonlet often is the only medium-sized dragonfly — about an inch and a half long — that’s encountered.

Salt marshes are insect-rich, so dragonlets can afford to be a little lazy. They do less flying and more waiting than many species: launching themselves out to capture passing prey before returning to their perch.

Adult males are deep blue or black, with clear or nearly-clear wings; females show varying amounts of yellow atop the abdomen, and elaborate patterns of black-and-yellow striping on the sides of the thorax. As accomodating as they are attractive, they make fine subjects for a photographer.

 

Comments always are welcome.

A Solo Trio

A developing flower of Xyris ambigua

 

Having shown more abstract images of a yellow-eyed grass (Xyris ambigua), it seemed only right to offer a more detailed look at this lovely plant.

Yellow-eyed-grasses not only belong in their own genus — Xyris  — they also belong in their own family: the Xyridaceae. More closely aligned with grasses than with other flowering plants, they thrive in wet places, specializing in acid or sandy soils, moist pine or oak savannas, pine flatwoods, pond shores, ditches, and bogs. These photos, taken in the wetland pine savannah of the Big Thicket Solo Tract, might just as easily have come from surrounding bogs.

A relatively tall plant that often grows to a height of three feet, its conspicuous cone-like inflorescence can be more than an inch long; tightly wound green and brown bracts subtend the pretty yellow flower.

Double or even triple flowers occasionally appear simultaneously
From bud to flower to seed

I especially enjoy the opportunity to see various stages of plant life on a single day. The experience brings to mind this passage from Ralph Waldo Emerson’s essay on self-reliance:

These roses under my window make no reference to former roses or to better ones… There is simply the rose; it is perfect in every moment of its existence. Before a leaf-bud has burst, its whole life acts; in the full-blown flower there is no more; in the leafless root there is no less. Its nature is satisfied, and it satisfies nature, in all moments alike. But man postpones or remembers; he does not live in the present, but with reverted eye laments the past, or, heedless of the riches that surround him, stands on tiptoe to foresee the future. He cannot be happy and strong until he too lives with nature in the present, above time.

Comments always are welcome.

Going Solo

 

During a visit to the Big Thicket’s Solo Tract, I found a single stem of coastal plain yellow-eyed grass (Xyris ambigua) glowing with unexpected beauty.

 

 

Comments always are welcome.